Upgrading Drupal

Upgrading D6 to D8, the process went smooth without a problem. Right afterwards, everything works as expected.

A few hours after the upgrade (without installing any modules/themes or changing anything), some of the functionality of the admin page got broken, more specifically it's related to all buttons in the admin page that are supposed to pop up an overlay page.

Hi everyone,
in the upgrade process I get informed to have 19 available upgrade path and 49 missing ones.
1. Question: what are paths in this context?
Among the missing ones: ACL, BACKUP_MIGRATE, BOOK, CTOOLS, DASHBOARD, ENTIITY, ENTITY_TOKEN, FIELD_SQL_STORAGE, FIELD_UI, FILE_ENTITY, thirteen I18N paths, LOCALE, MASS_CONTACT, MEDIA, MULTIFORM, OPTION, four RULES paths, four SYNTAXHIGHLIGHTER paths, SYSTEM, TAXONOMY_ACCESS, four VARIABLE paths, WYSIWYG

Bonjour,

J’ai fait quelques sites D6 en autodidacte, je veux les passer en D8. Je coince.
Dès que cela dépasse un site de base, j’ai des difficultés.
Je pense qu’il ne s’agit pas de grand-chose, sans doute quelques concepts qui m’ont échappé, mais j’ai besoin d’un coup de main.
J’ai demandé à des professionnels trouvés dans l’annuaire s’ils étaient prêts à me consacrer quelques heures (payées bien sûr), pas de réponses.
Si vous êtes expérimentés et que vous pouvez m’aider, vous pouvez me contacter.
merci d’avance
EM

Is it possible to post comments for my nice MIT Drupal Cloud web-page in the reverse timing order (newest on the top of the page)?

Hello All,

I'm a drupal newbie. I serve on a non-profit that has a drupal site. It was built three years ago and no one has touched it since. I saw that several of the modules were outdated and tried to update them. The update failed.

When I tried to log back into my site the next day, I couldn't. I get this message:

Fatal error: Cannot redeclare class OAuthSignatureMethod_HMAC_SHA1 in /homepages/13/d463178762/htdocs/modules/oauth/lib/OAuth.php on line 144

Could anyone provide any explanation as to what happened? It would be greatly appreciated.

I did a D6 to D8 migration in 10/2015 and I recreated the blocks and views not migrated. But in the mean time 6 month later my D6 original site has been getting more content.

What is the best way to bring all of that content from the last 6 month from my D6 to my migrated D8?